baber/WOPTO huggingface dataset:
Patent GB-809815-A (GB)
Title: Recovery of sucrose esters
Inventor: BARCLAY JOHN LYNN
IPC: C11C3/04
Filed: 1957-02-09
Abstract: Mono-esters of sucrose with saturated aliphatic monocarboxylic acids and di-esters of sucrose with saturated and unsaturated monocarboxylic acids are recovered from crude reaction mixtures containing such esters by removing organic solvent from the reaction mixture, adding water to the residue, adjusting the pH of the aqueous mixture to below pH 7 and separating the sucrose ester from the mixture.  The process is preferably applied to mono esters of sucrose with monocarboxylic acids containing at least 16 carbon atoms such as stearic and palmitic acids, and to diesters of sucrose with monocarboxylic acids containing at least 8 carbon atoms.  The initial esterifying reaction is effected in an organic solvent of relatively high boiling point such as dimethylformamide.  In the recovery process the solvent is removed, for example by distillation under reduced pressure. Water is then added and temperature of the mixture is desirably adjusted to below 20 DEG  C., preferably to the range 0 DEG  to 5 DEG  C.  The pH is adjusted by adding an acidic substance such as sulphuric acid, acetic acid, sulphur dioxide, carbon dioxide or an acidic ion exchange resin, preferably to pH 3-4.  The sucrose ester is thereby precipitated and may be separated from the mixture, for example, by filtration or centrifuging.  In examples: (1) sucrose is reacted with methyl stearate in dimethylformamide in the presence of potassium carbonate to produce sucrose monostearate, methyl alcohol and dimethylformamide are removed by distillation, the dried residue is stirred into water, sulphuric acid is added to reduce the pH to below 7 and the sucrose ester is filtered off; (2) sucrose monostearate produced as in (1) after removal of dimethyl formamide is stirred into water and sulphur dioxide is passed through the solution at between 0 DEG  and 5 DEG  C. to give a pH below 7; the sucrose ester precipitated is centrifuged off and resuspended in water and recentrifuged; (3) sucrose, ethyl oleate and potassium carbonate are heated together for 6 hours in dimethylformamide at 100 DEG  C. and 80-100 mm.  Hg. to produce sucrose dioleate, the solvent is distilled off, water is added and the slurry warmed and stirred; on cooling to 15 DEG  C. and passing in sulphur dioxide to give a pH of 4 to 5 the diester is coagulated and filtered.
Patent GB-1025932-A (GB)
Title: Method of and device for the balancing of work pieces
IPC: G01M1/12
Filed: 1963-02-04
Abstract: 1,025,932. Rotary conveyers. D. HOFMANN, [trading as GEB HOFMANN KOMM. GES. MASCHINENFABRIK ]. Feb. 4, 1963 [Feb. 5, 1962], No. 4520/63. Heading B8A. [Also in Division G1] In the production and machining of workpieces 5, e.g. crank-shafts or wheels for motor vehicles, in which an assembly line 10 conveying the workpieces 5, by means of arms 4, has a fixed cycle time divided into standstill and transfer times, the standstill time is not of sufficient duration for the simple incorporation of a balancing process and accordingly the workpieces are transferred to at least one additional transfer device 11 which has a longer cycle time to allow more time for balancing. As shown, there are two additional devices 11, 12, each having a cycle time twice as long as line 10. Each workpiece 5 is introduced at one station 6, rotated 90 degrees to a second station 9 where the workpiece is located or rotated before compensation, then rotated a further 90 degrees to the station 8, where unbalance is compensated and finally moved to the ejection station 7, the transfer devices 11, 12 being loaded and unloaded alternately. In a modification, Fig. 2 (not shown), only one additional transfer device is provided having a cycle time twice that of the assembly line, but two workpieces are introduced in the course of each cycle of the additional transfer device.
Patent GB-225428-A (GB)
Title: Improvements in or relating to electrical detectors or testing devices
IPC: H04R19/02
Filed: 1924-02-22
Abstract: 225,428. Denton, F. M. Feb. 22, 1924. Diaphragms; condenser telephones.-An acoustic apparatus for testing sparking-plugs &c. consists of a telephone diaphragm b connected to the circuit to be tested by a lead e : on being brought near an object having capacity, such as the ear, the diaphragm is thrown into vibration by a varying potential. The diaphragm b may be of thin sheet aluminium, brass, &c., and may have in front of it a thin diso of ebonite, mica, &c. to protect the ear of the operator, the two diaphragms being separate or cemented together, or the ear-piece may be thin in the centre, but without a central hole. Alternatively the diaphragm may be a disc of mica, ebonite, or other insulating material which may have a conducting coating such as tinfoil stuck on or a layer of copper &c. deposited electrically on the side remote from the ear. The diaphragm is clamped between two ebonite portions a, c forming the body of the earpiece, the member c having a socket d moulded out to receive the end of the flexible cable e which is screwed on to a cranked pin f moulded into the ebonite and touching the diaphragm b, or carrying one or more light flexible brushes which contact with the diaphragm.
Patent GB-1136107-A (GB)
Title: Substituted benzoxazolone derivatives and pesticidal compositions containing them
IPC: C07D263/58
Filed: 1966-02-02
Abstract: 1,136,107. Benzoxazolones. CIBA Ltd. 2 Feb., 1966 [3 Feb., 1965], No. 4594/66. Heading C2C. [Also in Division A5] The invention comprises benzoxazolone derivatives of formula wherein X 1  and X 2  are the same or different and represent hydrogen or halogen, R 1  and R 2  represent hydrogen, an alkyl (1-4C) radical, or a phenyl radical mono or disubstituted by halogen, alkyl, or halogenalkyl (1-4C) and Y represents oxygen or sulphur, and their preparation by reacting a compound with a compound or Y=C=N-R 1  or Y=C=N-R 2  preferably in the presence of a hydrogen halide acceptor. Many starting compounds are listed and the preparation of N-(3-methyl phenyl)-, N-(4- methylphenyl)-, N - (2,4 - dichlorophenyl)-, N - (3,4 - dichlorophenyl)-, N - (2 - methyl - 4 - chlorophenyl)-, N - (3 - trifluoromethyl - 4 - chloro) and N - (3 - trifluoromethyl)- 5 - chloro- 4 - benzoxazolin - 2 - one - 3 - carboxamide and N - (2,4 - dichlorophenyl),- N - (3,4 - dichlorophenyl)-, N - (3 - trifluoromethyl - 4 - chlorophenyl)- and N-(2-methyl-4-chlorophenyl)-5,6- dichloro - 4 - benzoxazolin - 2 - one - 3 -carboxamide; N - (3,4 - dichlorophenyl) - 5 - chloro - 4 - benzoxazolin - 2 - one - 3 - thiocarboxamide; N - methyl - or N,N - dimethyl - 5 - chloro and 5,6 - dichloro - 4 - benzoxazolin - 2 - one - 3 - carboxamide is described. The compounds are suitable for use in pesticide compositions (see Division A5).
Patent GB-215841-A (GB)
Title: Improvements in or relating to the concentration of coal
IPC: B03D1/02
Filed: 1923-02-16
Abstract: 215,841. Stenning, W. W., and Minerals Separation, Ltd. Feb. 16, 1923. Flotation processes and apparatus; washing plant, general arrangement of. -In coal-washing plant of the. type in which aqueous liquor or coal-bearing pulp is pumped by a centrifugal pump to a jig or other gravity concentrator, air is admitted to the centrifugal pump and a small proportion of a frothing-agent such as cresol, with or without a small proportion of a frothstabilizing agent such as paraffin or other oil, is added to the liquor or pulp before or when it enters the pump. In connection with the washwater reservoir there may be provided an agitator, which may be a centrifugal pump, means for admitting frothing- agent to the slurry before its admission to the agitator, and a chamber communicating with the outlet from the agitator in which a coal-bearing froth may form. In the plant shown, coal from a grizzly is passed to a jig 14 wherein the coarse shale is removed, the smaller coal and shale being then passed to a screen 16 from which the fine coal and shale together with water from the jig 14 are passed to a centrifugal pump 19 feeding a second jig 20. Air and reagents are admitted to the pump 19 through inlets 21, 22; where sea-water is used in the washery, the frothing agent may be omitted or reduced in amount. The coal is recovered mainly in the froth from the jig 20 and is drained on a belt 23, the water passing to a tank 25 from which overflow water is returned to the jig 14 by a pump 26 to which air or frothing agent may be supplied. Slurry from the tank 25 is passed through a centrifugal pump 30 having air and reagent inlets 31, 32 to a chamber 34 in which a coal-bearing froth rises, water being returned through a pipe 35 to the tank 25.
Patent GB-415096-A (GB)
Title: Improvements relating to roofing structures for containers
IPC: B65D90/02
Filed: 1933-02-15
Abstract: 415,096. Vehicle bodies; collapsable vehicles. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and HUNTER, M. C. I., 79, Teddington Park Road, Teddington, Middlesex. Feb. 15, 1933, No. 4650. [Class 108 (i).] Vehicle bodies or containers of variable width and, if desired, length are provided with a roof, preferably metallic, which comprises outer sections and central sections in overlapping relationship and supported from the body sides by stringers of adjustable length and secured by ties of adjustable length. The outer sections A having upturned adjacent flanges F are bridged by a central section B having downturned flangers G and the sections are supported by stringers C of angle iron which are adjustable in length by means of bolts and apertures H, the ends of the stringers C being bolted or otherwise secured to the body &c. sides as shown in Fig. 4. Ties D of channel form and likewise adjustable in length secure the roof sections to the stringers by means of bolts K connecting them to the body sides E. The outer edges of the outer sections A are turned down as shown at J. Where the length of the body or container is variable the lengths of outer and central sections are arranged to overlap and the stringers and ties are arranged at such overlaps.
Patent GB-1331683-A (GB)
Title: Trizaole derivatives
IPC: C07D249/06
Filed: 1971-06-14
Abstract: 1331683 Triazoles GAF CORP 14 June 1971 [17 June 1970] 4651/73 Divided out of 1331682 Heading C2C [Also in Division D1] Novel compounds of the general formula wherein Y 1  and Y 2  are selected from H, C 1-6  alkyl, C 1-6  alkoxy, cyano, halogen, and SO 3 M wherein M is selected from H, ammonium, sodium, or potassium and Y 3  is selected from H, C 1-6  alkyl, C 1-6  alkoxy, cyano, halogen, CO 2 M<SP>1</SP> and SO 3 M<SP>1</SP>, wherein M<SP>1</SP> is H, NH 4 , Na or K, exhibit fluorescent brightening properties. A typical preparative procedure is given in Example 1, where the hydrochloride salt of the ethyl ester of #-amino-#-ethoxy acrylic acid (prepared from ethanol, HCl and cyanoacetic acid ethyl ester) is converted to malonomamidine hydrochloride (utilizing ethanol and NH 3  gas) which is then converted to the dye (4-styrylphenyl) azomalonomamidine hydrochloride (using 4-amino stilbene) which in turn is treated with cupric chloride in picoline and Na 2 S to give the desired product 5-amino-2- (4 - styrylphenyl) - 2H - 1,2,3 - triazole - 4- carboxamide.
Patent GB-401685-A (GB)
Title: Improvements in cellular products obtained from laminated rocks and the like
IPC: C04B20/06
Filed: 1932-02-17
Abstract: A light aggregate for concrete is made by breaking gneiss, schist, slate, shale or the like to a required particle size, say 1/4 -\ba1/2 inch, and heating it e.g. in a rotary kiln to about 1100 DEG  C. until it softens and expands under the action of contained gas or moisture.  Specification 153,030, [Class 70, Indiarubber &c.], is referred to.
Patent GB-511432-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1938-02-15
Abstract: 511,432. Dyes. GROVES, W. W. (I. G. Farbenindustrie Akt.-Gres.). Feb. 15, 1938, No.4688. [Classes 2 (ii) and 2 (iii)] Monoazo dyes insoluble in water are made by coupling the diazo compound of an amine of the general formula (where X1 = H, alkyl, alkoxy, aralkoxy, aryloxy or halogen; X2 and X3 = H, alkyl alkoxy, aralkoxy, aryloxy, halogen or -SO2NR1R 2, always one of the two substituents X2 and X3, but not both simultaneously, being -SO2NR1R2; R1 being an aliphatic radical containing more than 2 carbon atoms, aralkyl or a hydroaromatic radical, R2 being an alkyl, aralkyl, aryl or a hydroaromatic radical with the proviso that if R1 and R2 are simultaneously alkyl radicals the sum of their carbon atoms must be at least 5,' and these alkyl radicals may be connected in a heterocyclic ring system), with an arylide of 2- hydroxycarbazole-3-carboxylic acid, which may also be substituted at the-ring nitrogen atom, 3-hydroxydiphenylene oxide-2-carboxylic acid or 3-hydroxydiphehylene sulphide-2-carboxylic acid, only such dyestuff components being used as do not contain any group lending solubility in water, such as SO3H or COOH groups. They are soluble in many organic solvents, e.g., hydrocarbons, alcohols, esters, ketones and may be used for colouring these solvents and nitro- or acetyl cellulose lacquers, films or plastic masses, varnishes, candles and fats. Brown shades are obtained. In examples, dyes from the following components are described : 1-amino-4-ethoxybenzene-5-sulpho-n-dibutyl- or di-isobutyl amide, 1-amino-2- methoxybenzene-5-sulpho-n-dibutylamide, 1- amino-2-methoxybenzene-5-sulpho-N-n-butylanilide, 1-amino-2-methylbenzene-5-sulpho-diisobutylamide ; 2-hydroxycarbazole-3-(carboyl-1<1>-amino-4<1>-chlorobenzene), 3-hydroxydiphenyleneoxide-2-(carboyl-1<1>-amino-2<1> : 51-dimethoxybenzene), 3-hydroxydiphenylene sulphide-2-carboylaminobenzene. A table of components is also given. Specifications 343,164, 372,301 and 426,564 are referred to.
Patent GB-220571-A (GB)
Title: Improvements in and relating to barrel staves and barrels formed of paperboard or like material, and to the method of making such barrels
IPC: B65D8/00
Filed: 1924-02-25
Abstract: 220,571. Alexander, A. E., (International Fibre Cooperage Co., Inc.). Feb. 25, 1924. Casks made from staves; hoops.-Paperboard &c. barrel staves are made from rectangular blanks bent longitudinally and laterally to produce a bilge and grooved at 2, Figs. 3 and 4, in such a way as to produce the necessary taper. In addition, grooves 4 are provided at the ends to receive heads 6. In assembling, hoops 7, 8 are drawn about the staves, those at the ends being bent transversely to conform to the ribs constituted bv the grooves 4. The ends are secured together by means of a plate 10, Fig. 9, with cut-outs at 11 whereby the edges 13 of the overlapping ends may be bent outwards to engage shoulders 12 on the plate.
Patent GB-414441-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/18
Filed: 1933-02-16
Abstract: 414,441. Wireless receiving-apparatus. RICHTER, A. T., 6, Philip-Rosenthalstrasse, Leipsic, Germany. Feb. 16, 1933, No. 4837. [Class 40 (v).] A wireless receiving- apparatus embodying wave-band change switching employs for this purpose, a plurality of rotatable or tiltable liquid switches a connected through flexible conductors with fixed contacts joined to the coils c so that the windings can be switched in or out while avoiding frictional metallic contact. In the example shown the coils and switches are mounted on a common axis. The liquid switches may be mounted in knobs or other manipulative controls.
Patent GB-973684-A (GB)
Title: Improvements in or relating to metal binders for binding bales of cotton or paper or other bales
IPC: B65D63/10
Filed: 1963-02-06
Abstract: 973,684. Binding bands for bales. B. VERDONCK. Feb. 6, 1963 [Feb. 14, 1962], No. 4895/63. Heading A4X. A wire band for binding under pressure bales of cotton or paper has a hammer shaped head 3 at one end and a buckle at the other comprising a wide portion 1 and a narrowed portion 2, the buckle and head being interconnected with the band by twisted portions 4, 5 and the plane of the head is at an angle to the twisted portion 4 and the plane of the narrow part 2 of the buckle is at an angle to the twisted portion 5.
Patent GB-832091-A (GB)
Title: Improved process for the manufacture of photographic materials
Inventor: GAZZARD EDWARD GEORGE
IPC: G03C1/38
Filed: 1957-02-13
Abstract: 832,091. Photographic materials. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 22, 1958 [Feb. 13, 1957], No. 4900/57. Addition to 793,554. Class 98(2) In the process of the parent Specification wherein a photographic layer is formed by coating on a substratum or support a solution containing 10 to 40% by weight of gelatin, the solvent being an aqueous mixture containing at least 20% by weight of a volatile water-miscible organic solvent and drying, part of the gelatin is replaced by a film-forming polymeric substance. The film-forming polymers may be a graft copolymers such as those described in Specification 793,549, polyacrylamides or acrylate polymers such as polyalkyl methacrylate, methyl methacrylate/methacrylic acid copolymers alone or with butyl methacrylate, #-ethoxyethanol methacrylate, nonyl methacrylate or styrene, styrene/ #-ethoxyethanol methacrylate/methacrylic acid copolymers, acrylic acid/acrylonitrile copolymers, polyamides, polythioamides, polyesters such as ethylene adipate/ethylene terephthalate copolymers, polyester-amides, condensation products of formaldehyde and urea, melamine or phenol, and cellulose derivatives. A cross-linking agent may be added to the emulsion such as certain specified epoxides, organic dioxides, glycidyl ethers, esters, amines or amides, formaldehyde, glyoxal or mucichloric or mucobromic acids.
Patent GB-624793-A (GB)
Title: Improvements in or relating to apparatus for emptying cans or the like
Filed: 1947-02-19
Abstract: 624,793. Piercing and emptying cans &c. HEINZ CO., Ltd., H. J., and THORN, R. H. W. Feb. 19, 1947, No. 4909. [Class 21] A container such as a can is emptied by the introduction of a suction conduit, the top of the container being first cut to permit the entry of the conduit by a device incorporated in the emptying apparatus. The suction conduit comprises a tube 11 connected to a storage tank under vacuum conditions, the end of the tube forming a seat for a mushroom valve 14 controlled by a compressed-air cylinder 19. The tube 11 has a jacket 12 through which water passes via holes 22 to dilute the contents of the can and ensure its complete evacuation. The cutting device comprises a blade 10 which surrounds the conduit and descends along its axis to form the orifice. As the conduit enters the orifice, the valve 14 opens and a valve 63 permits water to flow through the jacket 12. When the conduit reaches the bottom of the can, the valve 14 closes and water is shut off. The blade 10 is withdrawn from the can as the conduit enters. The conduits may be mounted in pairs to operate simultaneously. Their weight is taken by counterweights passing over pulleys and they are raised and lowered by cam-operated levers 48. Cams on a shaft 34 also control the cutting blades 10 and the water and air supply. Air supply to the cylinder 19 is via a camoperated valve 91, and the water supply valve 63 is cam-operated through a rod 62 against a spring 64. A cam 69 on a shaft 68, chain-driven from the shaft 34, operates by means of levers 72, 73 a push rod 77 which forces a pair of cans off a conveyer 84 onto a platform 28 beneath the conduits. The conveyer 84 is driven through bevel wheels 82, 85 from a main drive shaft 36 which also chain drives the shaft 34 through a clutch mechanism.
Patent GB-452120-A (GB)
Title: Improvements in and relating to counter display cards
IPC: G09F1/04
Filed: 1935-02-15
Abstract: 452,120. Showcards. RECKITT & SONS, Ltd., Dansom Lane, Hull, and STABLER, W., Low Barn, Kingsgate, Bridling- ton. Feb. 15, 1935, No. 4941. [Class 3 (ii)] A showcard 1, Fig. 2, of the kind supported on the neck of a tin or like container and comprising ahingedsupportingmember 3 apertured at 4 to receive the neck of the tin, is characterized in that a pointer 2 is provided for directing attention to the name on the tin of the goods therein. The member 3 may comprise hinged portions 3<a>, 3<b>, Fig. 8, provided with apertures which register with one another when the member is folded upon itself, the edge 9 of the member serving as a support for the showcard 1 or the pointer 2. When the showcard is to be used on tins of different sizes, the member 3 is provided with a double aperture 10, Fig. 9. In a further modification, Fig. 11, slits 12 are provided around the aperture 11 to facilitate positioning of the showcard over the cap of a tin. Specification 347,483 is referred to.
Patent GB-1248800-A (GB)
Title: Omprovements in reaming tools
Inventor: HAILER HERMANN
IPC: B23D77/02
Filed: 1969-01-29
Abstract: 1,248,800. Reamers. G. KRESS, [trading as MAPAL FABRIK FUR PRAZISIONSWERK ZEUGE DR. KRESS K.G.]. 29 Jan., 1969, No. 4954/69. Heading B3C. A reamer comprises a throw-away blade, Figs. 1 and 2, machined to an accurate dimension y, and clamped in a slot in the reamer body, and guide strips 6, one of which is spaced from the bottom of the slot by an accurate distance x. In a modification, a wedge 8, Fig. 3, is fixed in the required position, clamped by screws 9, and a casing composition is poured into the recess 10. In a further modification, Fig. 4, pins 11 are set, and the casting composition is poured into the holes 12. In a still further modification, the blade rests on a steel or hard metal plate (13), Fig. 5 (not shown), which is embedded in a hardened composition (14). The blade may have a cutting edge on each side.
Patent GB-805679-A (GB)
Title: Improvements in weld backing rings and an improved method of forming butt welded joints between tubular members
IPC: B23K9/035
Filed: 1957-02-14
Abstract: 805,679. Welding by fusion. BABCOCK & WILCOX Ltd. Feb. 14, 1957 [Feb. 15, 1956], No. 5047/57. Class 83 (4). A bushing ring 10 for use when butt welding a circumferential joint between tubular members 15 is formed by moulding a granular stable refractory substance, e.g. core sand, calcined kaolin or fireclay, kyanite, sillimanite, bauxite or fused alumina or silica and a binder, such as phenol or urea aldehyde resins or linseed oil, which gives off a protective gas during welding, and is provided with weakened portions to facilitate breaking, e.g. by tapping the tubular members, after welding is completed. The weakened portions may be in the form of notches 11 or of holes passing longitudinally through the ring.
Patent GB-234547-A (GB)
Title: Improvements in or relating to the treatment of metals or their alloys and to the production of the latter
IPC: C22C28/00
Filed: 1924-02-27
Abstract: 234,547. Pocock, A. L., Calver, C. T., and Watkins, W. H. Feb. 27, 1924. Alloys; dry processes of refining metals.-Tellurium is used as an agent for modifying the properties of metals other than lead or of alloys other than those containing lead, or for introducing into such metals or alloys other metals or alloys. The tellurium is introduced beneath the surface of the melted metals or alloys and may be used alone in powdered or other form or in admixture or alloyed with other metals or alloys; and it may be enclosed in metal foil or sheet. Fluxes such as salammoniac or borax may be applied to the surface of the metal under treatment. Examples are described in which aluminium and aluminium-copper alloys are treated with specified additions consisting of tellurium or of tellurium along with one or more of the metals cadmium, calcium, chromium, copper, gold, iron, magnesium, manganese, nickel and zinc. An alloy or compound of tellurium and silicon may also be used as an addition in some cases; and the method may be used for introducing small amounts of metals such as chromium, iron and tungsten into other metals.